The keto diet is a low carb, high fat diet. It lowers blood sugar and insulin levels and shifts the body's metabolism away from carbs and toward fat and ketones.There are several versions of the keto diet. The standard (SKD) version is the most researched and most recommended and is a metabolic state in which your body uses fat for fuel instead of carbs. Modifying your diet and practicing intermittent fasting can help you enter ketosis faster. Certain tests and symptoms can also help determine whether you've entered ketosis.A ketogenic diet can help you lose slightly more weight than a low fat diet. This often happens with less hunger and can boost insulin sensitivity and cause fat loss, leading to significant health benefits for people with type 2 diabetes or prediabetes